/ Dictionary / Index E e pluribus unum*: Meaning and Definition of Find definitions for: e plu•ri•bus u•num Pronunciation: (e pl'ri-boos" 'noom Eng. ē' ploor'&schwa-b&schwas y'n&schwam), [key] — Latin. Latin. out of many, one (motto of the U.S.). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. epizooty epoch Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language